[article]
| Titre : |
Improvement of the separation and antibiological fouling performance using layer-by-layer self-assembled nanofiltration membranes |
| Type de document : |
texte imprimé |
| Auteurs : |
Caihua Xiong, Auteur ; Zhonghua Huang, Auteur ; Zhiyu Ouyang, Auteur ; Mengdi Tang, Auteur ; Xiaolu Lin, Auteur ; Zhen Zhang, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 731–746 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Argent
Caractérisation
Membranes (technologie)
Nanofiltration
Nanoparticules
Polyéthylèneimine
Revêtements antisalissures
Séparation (technologie)
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A novel surface-modified nanofiltration (NF) membrane was prepared by layer-by-layer (LbL) self-assembly of positively charged polyethylenimine (PEI) and glutaraldehyde (GA) and negatively charged carboxymethyl chitosan (NO-CMC) alternately on the polyethersulfone (PES) membrane surfaces. The alteration aimed at improving the membrane separation performance, which was investigated in the study. In order to enhance antibiological fouling performance of the NF membrane, the silver nanoparticles (AgNPs) were coated on the modified membrane in two different modes. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), zeta potential measurement, and water contact angle measurements were employed to characterize the formed membrane surface chemical composition and morphology. The rejection of different single nonheavy metal salts, yielded from the modified membrane, followed the order of MgCl2 > MgSO4 > CaCl2 > Na2CO3 > NaCl > Na2SO4. Additionally, the rejection of single heavy metal salts Cr3+, Cu2+, Cd2+, Ni2+ was 88.95%, 84.04%, 82.69% and 83.47%, respectively, whereas the rejection of Cr3+, Cu2+, Cd2+, Ni2+ increased to 91.77%, 90.70%, 89.74% and 87.22%, respectively, in the mixed salt solution. Moreover, the rejection of Cu2+ and Cd2+ increased to 96.12% and 94.38% after adjusting pH. As a result of loading the AgNPs on the modified membrane with a suitable mode, the antibiological fouling ability of the membrane was immensely improved by AgNPs. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of NO-CMC - Preparation of composite membranes - Characterization - Evaluation of membrane performance - Results and discussion - Characterization of the NO-CMC - Characterization of the prepared composite NF membranes - Evaluation of membrane performance |
| DOI : |
https://doi.org/10.1007/s11998-019-00298-z |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-019-00298-z |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34103 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 3 (05-06/2020) . - p. 731–746
[article]
|
Aller sur edunet
Accueil
Improvement of the separation and antibiological fouling performance using layer-by-layer self-assembled nanofiltration membranes in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 3 (05-06/2020)
